CA1268569A - Telephone equipment utilizing ear microphone - Google Patents
Telephone equipment utilizing ear microphoneInfo
- Publication number
- CA1268569A CA1268569A CA000541982A CA541982A CA1268569A CA 1268569 A CA1268569 A CA 1268569A CA 000541982 A CA000541982 A CA 000541982A CA 541982 A CA541982 A CA 541982A CA 1268569 A CA1268569 A CA 1268569A
- Authority
- CA
- Canada
- Prior art keywords
- transceiver
- signal
- voice signal
- auditory canal
- external auditory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
- H04M1/6066—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone including a wireless connection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Set Structure (AREA)
- Mobile Radio Communication Systems (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
ABSTRACT
A telephone equipment capable of clearly talking even in noisy environment such as a construction site. A
transceiver has a converter for converting a vibration of an external auditory canal wall according to a voice of a living body into a voice signal, and a speaker for converting the received voice signal into an aural signal therein. The transceiver is constructed to be able to be inserted into the external auditory canal to transmit and receive the signal while keeping hands free.
A telephone equipment capable of clearly talking even in noisy environment such as a construction site. A
transceiver has a converter for converting a vibration of an external auditory canal wall according to a voice of a living body into a voice signal, and a speaker for converting the received voice signal into an aural signal therein. The transceiver is constructed to be able to be inserted into the external auditory canal to transmit and receive the signal while keeping hands free.
Description
~5~
The present invention relates -to a -tele-phone equipment utilizing an ear microphone suitable for use under noisy circumstances by providing the ear microphone and hence a vibration pick-up mecha-nlsm for picking up a bone conduction voice signalfrom the external auditory canal wall of -the ear and a speaker for converting the received signal to a voice.
A conventional telephone set usually has a dial unit and a handset to be connected through a bell and a hook circuit to a main wire. Or, in another telephone set, a handset is composed of a microphone and a speaker disposed separately to permit talking while keeping both hands free.
When the conventional telephone equipment is used in a construction site, speech is hardly clarified due to environmental noises. When the telephone set is carried in an automobile, drawbacks arise in its operability and environmental noises.
The telephone set in which a speaker and a microphone are separately disposed is readily affected by environmental noises, it is difficult to keep a secret of talking content, and it is also hard to inexpensively construct the telephone set.
A conventional wireless telephone set usually includes a body, containing radio wave equipment, and a circuit unit for communica-ti.ng a signal by radio wave with the body to form a signal adapted for the level of a main wire and to communi-cate the signal by high Erequency waves through antennas.
In a conventional case, a handset, a dial, and radio wave equipment are separately composed to transmit and receive through respec-tive antennas.
Such a set can also be used as a transceiver without using a dial unit and an exchanger.
When these conventional examples are used in a construction site, similar drawbacks to the above arise, such as it is difficult to smoothly talk due to environmental noises.
Accordingly, an object of the present invention is to provide telephone equipment which has a simple construction, is not affected by environ-mental noises, can keep a secret and operates while keeping hands free.
Another object of the present invention is to provide a wireless telephone equipment which has a simple construction, is not affected by environmental noises, can keep a secret and operates while keeping hands free.
In accordance with a particular embodiment there is provided a telephone equipment which includes a transceiver having a converter for con-verting vibration of an external auditory canal wall, caused by speech of a person, into a voice signal. A
speaker is integrated with the converter for convert-ing a received voice signal into an aural signal.
The transceiver is adapted to be inserted into an external auditory cana~ for use. An amplifier amplifies a voice signal according to the vibration to supply the signal to a telephone circuit, therehy transmitting and receiving while keeping hands Eree.
In accordance with a Eurther embodiment, a telephone equipment includes a transceiver having a converter for converting a vibration of an external auditory canal wall caused by speech of a person into a voice signal. A speaker integrated with the converter converts a received voice signal into an aural signal. The -transceiver is adapted to be inserted into an external auditory canal for use. A
transmitter transmits the voice signal based on the vibration as a radio wave signal. A receiver
The present invention relates -to a -tele-phone equipment utilizing an ear microphone suitable for use under noisy circumstances by providing the ear microphone and hence a vibration pick-up mecha-nlsm for picking up a bone conduction voice signalfrom the external auditory canal wall of -the ear and a speaker for converting the received signal to a voice.
A conventional telephone set usually has a dial unit and a handset to be connected through a bell and a hook circuit to a main wire. Or, in another telephone set, a handset is composed of a microphone and a speaker disposed separately to permit talking while keeping both hands free.
When the conventional telephone equipment is used in a construction site, speech is hardly clarified due to environmental noises. When the telephone set is carried in an automobile, drawbacks arise in its operability and environmental noises.
The telephone set in which a speaker and a microphone are separately disposed is readily affected by environmental noises, it is difficult to keep a secret of talking content, and it is also hard to inexpensively construct the telephone set.
A conventional wireless telephone set usually includes a body, containing radio wave equipment, and a circuit unit for communica-ti.ng a signal by radio wave with the body to form a signal adapted for the level of a main wire and to communi-cate the signal by high Erequency waves through antennas.
In a conventional case, a handset, a dial, and radio wave equipment are separately composed to transmit and receive through respec-tive antennas.
Such a set can also be used as a transceiver without using a dial unit and an exchanger.
When these conventional examples are used in a construction site, similar drawbacks to the above arise, such as it is difficult to smoothly talk due to environmental noises.
Accordingly, an object of the present invention is to provide telephone equipment which has a simple construction, is not affected by environ-mental noises, can keep a secret and operates while keeping hands free.
Another object of the present invention is to provide a wireless telephone equipment which has a simple construction, is not affected by environmental noises, can keep a secret and operates while keeping hands free.
In accordance with a particular embodiment there is provided a telephone equipment which includes a transceiver having a converter for con-verting vibration of an external auditory canal wall, caused by speech of a person, into a voice signal. A
speaker is integrated with the converter for convert-ing a received voice signal into an aural signal.
The transceiver is adapted to be inserted into an external auditory cana~ for use. An amplifier amplifies a voice signal according to the vibration to supply the signal to a telephone circuit, therehy transmitting and receiving while keeping hands Eree.
In accordance with a Eurther embodiment, a telephone equipment includes a transceiver having a converter for converting a vibration of an external auditory canal wall caused by speech of a person into a voice signal. A speaker integrated with the converter converts a received voice signal into an aural signal. The -transceiver is adapted to be inserted into an external auditory canal for use. A
transmitter transmits the voice signal based on the vibration as a radio wave signal. A receiver
- 2 -~9 receives a speech si.gnal transmitted by a radio wave, thereby transmitting and receiving a signal while keeping hands free.
Other and further objects, features and advantages of the invention will appear more fully from the following description, when read together with the accompanying drawings, in which:
Fig. 1 is an explanatory view of a princi-ple of a telephone equipment utilizing an ear micro-phone of the present invention;
Fig. 2 is a block diagram showing anembodiment of a telephone equipment according to the present inven-tion;
Fig. 3 is a view showing the using state of a handset;
Fig. 4 is a sectional view of a handset;
Fig. 5 is a view showing another embodiment of a telephone equipment according to the invention;
Fig. 6 is an explanatory view of a princi-ple of another embodimen-t;
Fig. 7 is a view of the construction of still another embodiment of a telephone equipment according to the invention;
Fig. 8 is a front view of a conventional telephone equipment; and Fi.gs~ 9 and 10 are views showing a convent-ional wireless telephone set.
The most preferable embodiment of the present invention will be described in detai.1 with reference -to the accompanying drawings.
Figs. 1 to 4 show an embodiment of tele-phone equipment according to the present invention.
The telephone equipment comprises a -telephone set 11 having dial push-buttons 13, a transceiver 12 to be inserted into an external auditory canal, an amplifier 14 for amplifying a voice signal generated from the transceiver 12, and a network control
Other and further objects, features and advantages of the invention will appear more fully from the following description, when read together with the accompanying drawings, in which:
Fig. 1 is an explanatory view of a princi-ple of a telephone equipment utilizing an ear micro-phone of the present invention;
Fig. 2 is a block diagram showing anembodiment of a telephone equipment according to the present inven-tion;
Fig. 3 is a view showing the using state of a handset;
Fig. 4 is a sectional view of a handset;
Fig. 5 is a view showing another embodiment of a telephone equipment according to the invention;
Fig. 6 is an explanatory view of a princi-ple of another embodimen-t;
Fig. 7 is a view of the construction of still another embodiment of a telephone equipment according to the invention;
Fig. 8 is a front view of a conventional telephone equipment; and Fi.gs~ 9 and 10 are views showing a convent-ional wireless telephone set.
The most preferable embodiment of the present invention will be described in detai.1 with reference -to the accompanying drawings.
Figs. 1 to 4 show an embodiment of tele-phone equipment according to the present invention.
The telephone equipment comprises a -telephone set 11 having dial push-buttons 13, a transceiver 12 to be inserted into an external auditory canal, an amplifier 14 for amplifying a voice signal generated from the transceiver 12, and a network control
- 3 -~35~
circuit 15. Reference numeral 16 designates an exchanger connected through a main wire to the telephone set 11. Numeral 17 denotes a handset which may be provided toyether with the transceiver 12, or may be separately provLded from the transceiver 12.
Fig. 3 shows the transceiver 12 inserted into an external auditory canal 18 to transmit an electric signal through leads 19. Fig. 4 shows the internal structure of the transceiver 12. The transceiver 12 is constructed to be able to transmit an external acoustic sound through a duct 20 directly to an external auditory canal, and the vibration of a voice transmitted through a living body bone is converted by a vibration type microphone 21 into an electric signal. Numeral 22 designates a speaker for con-verting the electric signal into an acoustic sound.
Either a conduction type or electrostatic type can be utilized. The leads 23, 24 leading from the micro-phone 21 and the speaker 22 are connected to the telephone set 11 shown in Fig. 1. The telephone set 11 may be composed as an automotive telephone set.
In this case, the telephone set 11 is connected by a radio wave equipment to the exchanger 16. When the telephone is called, the bell or buzzer rings. Thus, when an operator picks up -the transceiver 12 or presses the button for response, the telephone set enters a -talking state. After the operator attaches the transceiver 12 to the ex-ternal auditory canal, his hancls may be kept free. Since a voice is supplied as a direct vibration -to the converter, the sound heard as speech by the transceiver 12 is slightly different when compared to the ordinary collection of the sounds received by a receiver.
Thus, the operation by -the transceiver 12 can be limited as required by constructing to talk by the handset 17 as shown in Fig. 1.
circuit 15. Reference numeral 16 designates an exchanger connected through a main wire to the telephone set 11. Numeral 17 denotes a handset which may be provided toyether with the transceiver 12, or may be separately provLded from the transceiver 12.
Fig. 3 shows the transceiver 12 inserted into an external auditory canal 18 to transmit an electric signal through leads 19. Fig. 4 shows the internal structure of the transceiver 12. The transceiver 12 is constructed to be able to transmit an external acoustic sound through a duct 20 directly to an external auditory canal, and the vibration of a voice transmitted through a living body bone is converted by a vibration type microphone 21 into an electric signal. Numeral 22 designates a speaker for con-verting the electric signal into an acoustic sound.
Either a conduction type or electrostatic type can be utilized. The leads 23, 24 leading from the micro-phone 21 and the speaker 22 are connected to the telephone set 11 shown in Fig. 1. The telephone set 11 may be composed as an automotive telephone set.
In this case, the telephone set 11 is connected by a radio wave equipment to the exchanger 16. When the telephone is called, the bell or buzzer rings. Thus, when an operator picks up -the transceiver 12 or presses the button for response, the telephone set enters a -talking state. After the operator attaches the transceiver 12 to the ex-ternal auditory canal, his hancls may be kept free. Since a voice is supplied as a direct vibration -to the converter, the sound heard as speech by the transceiver 12 is slightly different when compared to the ordinary collection of the sounds received by a receiver.
Thus, the operation by -the transceiver 12 can be limited as required by constructing to talk by the handset 17 as shown in Fig. 1.
- 4 -In the construction described above, the bone conduction voice signal (vibration) of the external auditory canal wall is conver-ted -to an electric signal, and amplified by an amplifier 14 contained in the telephone set 11 to the level capable of transmit-ting to a telephone channel.
Sound receiving volume is also regulated to a suitable level to be heard, and transmitted -to the transceiver 12.
The transceiver 12 integrally contains a bidirectional converter, i.e., a vibra-tion type microphone 21 and a speaker 22, and is constructed to be contained in the external auditory canal. Thus, the transceiver 12 can be utilized while keeping hands free to eliminate -the disturbance of manual work.
Figs. 5 to 7 show an embodiment of a wireless telephone equipment according to the present invention. The telephone equipment comprises a transceiver 12 to be inserted into an external auditory canal, a transceiver 25 having a battery and a transceiver unit, and an antenna 26 for transmit-ting and receiving a radio wave. The transceiver 25 is provided to talk by a high frequency signal through antennas 26, 28 to a transceiver 27 shown in Fig. 6.
E`ig. 7 exemplifies a telephone equipment in which a transceiver 25 and a transceiver 12 are separately provided. In the telephone equipment, a battery 29 and a transceiver 30 are contained in separate vessels. The transceiver 12 is attached to the external auditory canal at calling time to set in a hook-on state. Further, another switch is provided and operated to se-t to a speech state. In addition, a speech s-tate can be set by operating specific buttons of the dial unit 31.
Sound receiving volume is also regulated to a suitable level to be heard, and transmitted -to the transceiver 12.
The transceiver 12 integrally contains a bidirectional converter, i.e., a vibra-tion type microphone 21 and a speaker 22, and is constructed to be contained in the external auditory canal. Thus, the transceiver 12 can be utilized while keeping hands free to eliminate -the disturbance of manual work.
Figs. 5 to 7 show an embodiment of a wireless telephone equipment according to the present invention. The telephone equipment comprises a transceiver 12 to be inserted into an external auditory canal, a transceiver 25 having a battery and a transceiver unit, and an antenna 26 for transmit-ting and receiving a radio wave. The transceiver 25 is provided to talk by a high frequency signal through antennas 26, 28 to a transceiver 27 shown in Fig. 6.
E`ig. 7 exemplifies a telephone equipment in which a transceiver 25 and a transceiver 12 are separately provided. In the telephone equipment, a battery 29 and a transceiver 30 are contained in separate vessels. The transceiver 12 is attached to the external auditory canal at calling time to set in a hook-on state. Further, another switch is provided and operated to se-t to a speech state. In addition, a speech s-tate can be set by operating specific buttons of the dial unit 31.
- 5 -æ~
In the embodiment descr.ibed above, a bone conduction voice signal (vibration) of an external auditory canal wall obtained by a living body in -the transceiver 12 is irradiated as a radio wave by the antenna 26 to be transmitted to the transceiver 27, a voice signal from the main wire is radiated as a radio wave signal from the antenna 28, and received by a receiver in the transceiver 12. The dial unit 29 by a radio wave is operated at calling time and the calling sound is produced by the bell or the buzzer in the transceiver 27 a-t calling time or the bell sound is produced in the transceiver 12.
In the embodiment descr.ibed above, a bone conduction voice signal (vibration) of an external auditory canal wall obtained by a living body in -the transceiver 12 is irradiated as a radio wave by the antenna 26 to be transmitted to the transceiver 27, a voice signal from the main wire is radiated as a radio wave signal from the antenna 28, and received by a receiver in the transceiver 12. The dial unit 29 by a radio wave is operated at calling time and the calling sound is produced by the bell or the buzzer in the transceiver 27 a-t calling time or the bell sound is produced in the transceiver 12.
6 -~9 voice signal (vibration) of an external auditory canal wall obtained by a living body i.n the transceiver 12 is irradiated as a radio wave by the antenna 26 to be transmitted to the transcelver 27, a voice signal from the main wire is radiated as a radio wave signal from the antenna 28, and received by a receiver in the transceiver 12.
Fig. 7 shows still another embodiment of a telephone equipment according to the present invention ln which a transceiver 25 is provided separated from a transceiver 12.
In the telephone equipment, a battery 29 and a transceiver 30 are separately contained respectively in vessels. The transceiver 12 is attached -to the ex-ternal auditory canal at calling time to be set to a hook-on state, or may be set to a speed state by operating another switch. Furthex, a speech state can be set by operating the specific buttons of the dial unit 29.
In the embodiment described above, -the bone conduction voice signal (vibration) of the external auditory canal wal.l obtained from a living body in the transceiver is transmitted as a radio wave from the ankenna 26 to the transceiver 27, the voice signal from the main wire is radiated as a radio wave signal from the antenna 28, and received by -the receiver in the transceiver 12. The dial unit 29 by a radio wave is operated at calling time and the calling sound is produced by the bell or the buzzer in the transceiver 14 at calling time or the bell sound is produced in the transceiver 11.
Fig. 7 shows still another embodiment of a telephone equipment according to the present invention ln which a transceiver 25 is provided separated from a transceiver 12.
In the telephone equipment, a battery 29 and a transceiver 30 are separately contained respectively in vessels. The transceiver 12 is attached -to the ex-ternal auditory canal at calling time to be set to a hook-on state, or may be set to a speed state by operating another switch. Furthex, a speech state can be set by operating the specific buttons of the dial unit 29.
In the embodiment described above, -the bone conduction voice signal (vibration) of the external auditory canal wal.l obtained from a living body in the transceiver is transmitted as a radio wave from the ankenna 26 to the transceiver 27, the voice signal from the main wire is radiated as a radio wave signal from the antenna 28, and received by -the receiver in the transceiver 12. The dial unit 29 by a radio wave is operated at calling time and the calling sound is produced by the bell or the buzzer in the transceiver 14 at calling time or the bell sound is produced in the transceiver 11.
Claims (3)
1. A telephone equipment comprising:
a transceiver comprising a converter for converting vibration of an external auditory canal wall caused by speech of a person into a voice signal, and a speaker integrated with the converter for converting a received voice signal into an aural signal, said transceiver being adapted to be inserted into an external auditory canal for use; and an amplifier for amplifying a voice signal according to the vibration to supply the signal to a telephone circuit, thereby transmitting and receiving while keeping hands free.
a transceiver comprising a converter for converting vibration of an external auditory canal wall caused by speech of a person into a voice signal, and a speaker integrated with the converter for converting a received voice signal into an aural signal, said transceiver being adapted to be inserted into an external auditory canal for use; and an amplifier for amplifying a voice signal according to the vibration to supply the signal to a telephone circuit, thereby transmitting and receiving while keeping hands free.
2. A telephone equipment comprising:
a transceiver comprising a converter for converting a vibration of an external auditory canal wall caused by speech of a person into a voice signal, and a speaker integrated with the converter for converting a received voice signal into an aural signal, said transceiver adapted to be inserted into an external auditory canal for use;
a transmitter for transmitting the voice signal based on the vibration as a radio wave signal;
and a receiver for receiving a speech signal transmitted by a radio wave, thereby transmitting and receiving the signal while keeping hands free.
a transceiver comprising a converter for converting a vibration of an external auditory canal wall caused by speech of a person into a voice signal, and a speaker integrated with the converter for converting a received voice signal into an aural signal, said transceiver adapted to be inserted into an external auditory canal for use;
a transmitter for transmitting the voice signal based on the vibration as a radio wave signal;
and a receiver for receiving a speech signal transmitted by a radio wave, thereby transmitting and receiving the signal while keeping hands free.
3. A wireless telephone equipment according to claim 2, wherein the transmitter, the receiver and a battery for driving the transmitter and the receiver are integrally associated in the transceiver.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26687786A JPS63120547A (en) | 1986-11-10 | 1986-11-10 | Telephone set |
| JP61-266877 | 1986-11-10 | ||
| JP26687686A JPS63120546A (en) | 1986-11-10 | 1986-11-10 | Wireless telephone set |
| JP61-266876 | 1986-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1268569A true CA1268569A (en) | 1990-05-01 |
Family
ID=26547627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000541982A Expired - Fee Related CA1268569A (en) | 1986-11-10 | 1987-07-14 | Telephone equipment utilizing ear microphone |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU603151B2 (en) |
| CA (1) | CA1268569A (en) |
| DE (1) | DE3723261A1 (en) |
| FR (1) | FR2606569A1 (en) |
| GB (1) | GB2198612A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5125032A (en) * | 1988-12-02 | 1992-06-23 | Erwin Meister | Talk/listen headset |
| US5109410A (en) * | 1990-01-05 | 1992-04-28 | Technology Management And Ventures, Ltd. | Two-line, hands-free telephone system |
| US5164984A (en) * | 1990-01-05 | 1992-11-17 | Technology Management And Ventures, Ltd. | Hands-free telephone assembly |
| AU636778B2 (en) * | 1990-07-30 | 1993-05-06 | Shuji Kitagawa | Handset |
| US5191602A (en) * | 1991-01-09 | 1993-03-02 | Plantronics, Inc. | Cellular telephone headset |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1930531A1 (en) * | 1969-06-16 | 1970-12-23 | Standard Elek K Lorenz Ag | Telephone subscriber station with a fixed telephone station and a cordless handset |
| DE1762915A1 (en) * | 1968-09-20 | 1970-10-22 | Bernhard Kaiser | Ear microphone |
| US4150262A (en) * | 1974-11-18 | 1979-04-17 | Hiroshi Ono | Piezoelectric bone conductive in ear voice sounds transmitting and receiving apparatus |
| GB1548145A (en) * | 1978-02-21 | 1979-07-04 | Standard Telephones Cables Ltd | Telephones |
| DE2820096A1 (en) * | 1978-05-09 | 1979-11-15 | Standard Elektrik Lorenz Ag | Telephone instrument with remote listening unit - uses earphones with radio receiver and transmitter in instrument modulated by speech signal |
| JPS5850078B2 (en) * | 1979-05-04 | 1983-11-08 | 株式会社 弦エンジニアリング | Vibration pickup type ear microphone transmitting device and transmitting/receiving device |
| CA1200843A (en) * | 1980-07-01 | 1986-02-18 | Charles L. Hicks, Jr. | Cordfree communication instrument |
| US4588867A (en) * | 1982-04-27 | 1986-05-13 | Masao Konomi | Ear microphone |
| FR2559984B1 (en) * | 1984-02-17 | 1987-01-16 | Thomson Csf | CONTACT EAR MICROPHONE |
-
1987
- 1987-07-14 DE DE19873723261 patent/DE3723261A1/en not_active Ceased
- 1987-07-14 CA CA000541982A patent/CA1268569A/en not_active Expired - Fee Related
- 1987-07-30 GB GB08718118A patent/GB2198612A/en active Pending
- 1987-11-05 FR FR8715357A patent/FR2606569A1/en active Pending
- 1987-11-10 AU AU80957/87A patent/AU603151B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU8095787A (en) | 1988-05-12 |
| GB8718118D0 (en) | 1987-09-03 |
| FR2606569A1 (en) | 1988-05-13 |
| DE3723261A1 (en) | 1988-05-11 |
| GB2198612A (en) | 1988-06-15 |
| AU603151B2 (en) | 1990-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |