IT7830906A0 - INTERCOM EQUIPMENT AND/OR INTERCOM SWITCHING SYSTEM. - Google Patents
INTERCOM EQUIPMENT AND/OR INTERCOM SWITCHING SYSTEM.Info
- Publication number
- IT7830906A0 IT7830906A0 IT7830906A IT3090678A IT7830906A0 IT 7830906 A0 IT7830906 A0 IT 7830906A0 IT 7830906 A IT7830906 A IT 7830906A IT 3090678 A IT3090678 A IT 3090678A IT 7830906 A0 IT7830906 A0 IT 7830906A0
- Authority
- IT
- Italy
- Prior art keywords
- intercom
- switching system
- equipment
- intercom equipment
- intercom switching
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
- H01H1/242—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting the contact forming a part of a coil spring
-
- 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
- H04M1/04—Supports for telephone transmitters or receivers
- H04M1/06—Hooks; Cradles
- H04M1/08—Hooks; Cradles associated with switches operated by the weight of the receiver or hand-set
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT30906/78A IT1160354B (en) | 1978-12-15 | 1978-12-15 | SWITCHING SYSTEM FOR DOOR PHONE AND / OR INTERPHONE DEVICES |
AT0778979A AT381424B (en) | 1978-12-15 | 1979-12-10 | SWITCHING DEVICE FOR INTERCOM SYSTEMS, ESPECIALLY SUBSCRIBER STATIONS |
DE19792949965 DE2949965A1 (en) | 1978-12-15 | 1979-12-12 | Switching mechanism for micro-telephone - actuates push-button when receiver of is lifted and has spring with end permanently connected to printed circuit board |
ES487440A ES487440A1 (en) | 1978-12-15 | 1979-12-14 | Switching mechanism for micro-telephone - actuates push-button when receiver of is lifted and has spring with end permanently connected to printed circuit board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT30906/78A IT1160354B (en) | 1978-12-15 | 1978-12-15 | SWITCHING SYSTEM FOR DOOR PHONE AND / OR INTERPHONE DEVICES |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7830906A0 true IT7830906A0 (en) | 1978-12-15 |
IT1160354B IT1160354B (en) | 1987-03-11 |
Family
ID=11232744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT30906/78A IT1160354B (en) | 1978-12-15 | 1978-12-15 | SWITCHING SYSTEM FOR DOOR PHONE AND / OR INTERPHONE DEVICES |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT381424B (en) |
DE (1) | DE2949965A1 (en) |
ES (1) | ES487440A1 (en) |
IT (1) | IT1160354B (en) |
-
1978
- 1978-12-15 IT IT30906/78A patent/IT1160354B/en active
-
1979
- 1979-12-10 AT AT0778979A patent/AT381424B/en not_active IP Right Cessation
- 1979-12-12 DE DE19792949965 patent/DE2949965A1/en not_active Ceased
- 1979-12-14 ES ES487440A patent/ES487440A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2949965A1 (en) | 1980-07-03 |
IT1160354B (en) | 1987-03-11 |
ATA778979A (en) | 1986-02-15 |
AT381424B (en) | 1986-10-10 |
ES487440A1 (en) | 1980-09-16 |
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