BE387570A - - Google Patents

Info

Publication number: BE387570A
Authority: BE; Belgium

Application number

Priority date (The priority date 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 date listed.)

1931-04-04

Publication of BE387570A publication Critical patent/BE387570A/xx

Classifications

- 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

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Telephone Set Structure (AREA)

BE387570D 1931-04-04 BE387570A (ko)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE399202X		1931-04-04

Publications (1)

Publication Number	Publication Date
BE387570A true BE387570A (ko)

Family

ID=6397458

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE387570D BE387570A (ko)	1931-04-04

Country Status (5)

Country	Link
US (1)	US1917724A (ko)
BE (1)	BE387570A (ko)
FR (1)	FR734592A (ko)
GB (1)	GB399202A (ko)
NL (1)	NL35621C (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2443799A (en) *	1943-06-02	1948-06-22	Ericsson Telefon Ab L M	Cradle-type telephone subset
US2433295A (en) *	1944-11-10	1947-12-23	Automatic Elect Lab	Loud-speaker telephone set
US2686848A (en) *	1951-06-11	1954-08-17	Arthur H Wicknick	Handset cradling attachment for telephones
BE541779A (ko) *	1954-10-05
US4790008A (en) *	1986-04-18	1988-12-06	American Telephone And Telegraph Company	Telephone line switch apparatus

0
- BE BE387570D patent/BE387570A/xx unknown
- NL NL35621D patent/NL35621C/xx active
1932
- 1932-03-30 GB GB9159/32A patent/GB399202A/en not_active Expired
- 1932-04-02 FR FR734592D patent/FR734592A/fr not_active Expired
- 1932-05-07 US US609888A patent/US1917724A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US1917724A (en)	1933-07-11
GB399202A (en)	1933-10-02
NL35621C (ko)
FR734592A (fr)	1932-10-24

Publication	Publication Date	Title
FR743653A (ko)	1933-04-03
FR742944A (ko)	1933-03-18
SE78625C1 (ko)	1933-10-17
BE377446A (ko)	1931-03-31
BE377995A (ko)
BE378008A (ko)
NL35621C (ko)
NL34908C (ko)	1935-03-15
NL32493C (ko)	1934-04-16
NL32265C (ko)
BE386796A (ko)
BE383877A (ko)
BE380796A (ko)
BE378730A (ko)
BE378712A (ko)
BE378706A (ko)	1931-05-30
BE378640A (ko)
BE378630A (ko)
BE378610A (ko)
BE378608A (ko)	1931-04-30
BE378523A (ko)
BE378467A (ko)	1931-04-30
BE378413A (ko)
BE378350A (ko)
BE378214A (ko)