CA121281A - Diaphragm for phonographic and telephonic apparatus - Google Patents

Diaphragm for phonographic and telephonic apparatus

Info

Publication number
CA121281A
CA121281A CA000121281A CA121281DA CA121281A CA 121281 A CA121281 A CA 121281A CA 000121281 A CA000121281 A CA 000121281A CA 121281D A CA121281D A CA 121281DA CA 121281 A CA121281 A CA 121281A
Authority
CA
Canada
Prior art keywords
phonographic
diaphragm
telephonic apparatus
telephonic
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
Application number
CA000121281A
Other languages
French (fr)
Inventor
Joseph George Coombs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA121281A publication Critical patent/CA121281A/en
Expired legal-status Critical Current

Links

CA000121281A 1907-10-07 1907-10-07 Diaphragm for phonographic and telephonic apparatus Expired CA121281A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA121281T 1907-10-07

Publications (1)

Publication Number Publication Date
CA121281A true CA121281A (en) 1909-10-19

Family

ID=45241005

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000121281A Expired CA121281A (en) 1907-10-07 1907-10-07 Diaphragm for phonographic and telephonic apparatus

Country Status (1)

Country Link
CA (1) CA121281A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9357810B2 (en) 2010-05-14 2016-06-07 Louis Garneau Sports Inc. Cyclist helmet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9357810B2 (en) 2010-05-14 2016-06-07 Louis Garneau Sports Inc. Cyclist helmet

Similar Documents

Publication Publication Date Title
CA121281A (en) Diaphragm for phonographic and telephonic apparatus
AU958107A (en) Improvements in diaphragms or tympans for phonographic and telephonic apparatus
CA106863A (en) Telephone and telegrap0h apparatus
AU958107B (en) Improvements in diaphragms or tympans for phonographic and telephonic apparatus
CA116509A (en) Telephone apparatus
CA126102A (en) Telephone dictating system or apparatus
CA115372A (en) Microphone
CA107617A (en) Telephone selecting apparatus
CA122446A (en) Telephone exchange apparatus
CA107549A (en) Microphone for telephones
CA116522A (en) Telephone repeating apparatus
CA107608A (en) Telephone signalling apparatus
CA113477A (en) Sound record
CA112942A (en) Telephone system
CA107303A (en) Telephone system
CA109269A (en) Telephone system
CA117555A (en) Telephone system
CA109632A (en) Signal recording apparatus
CA112225A (en) Electro-magnetic apparatus
CA108682A (en) Sound regulator for phonographs
CA125885A (en) Antiseptic device for telephone mouthpieces
CA108561A (en) Microphone
CA106862A (en) Aparatus for telegraphing sound
AU799007A (en) Improvements in apparatus for telegraphing sounds
CA108704A (en) Phonograph