FR499529A - Improvements to metered telephone systems - Google Patents

Improvements to metered telephone systems

Info

Publication number
FR499529A
FR499529A FR499529DA FR499529A FR 499529 A FR499529 A FR 499529A FR 499529D A FR499529D A FR 499529DA FR 499529 A FR499529 A FR 499529A
Authority
FR
France
Prior art keywords
metered
telephone systems
telephone
systems
metered telephone
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
Other languages
French (fr)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR499529A publication Critical patent/FR499529A/en
Expired legal-status Critical Current

Links

FR499529D 1917-12-24 1918-12-23 Improvements to metered telephone systems Expired FR499529A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US499529XA 1917-12-24 1917-12-24

Publications (1)

Publication Number Publication Date
FR499529A true FR499529A (en) 1920-02-13

Family

ID=43352015

Family Applications (1)

Application Number Title Priority Date Filing Date
FR499529D Expired FR499529A (en) 1917-12-24 1918-12-23 Improvements to metered telephone systems

Country Status (1)

Country Link
FR (1) FR499529A (en)

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