DK30874C - Membrane for Speech Machines and the like. - Google Patents

Membrane for Speech Machines and the like.

Info

Publication number
DK30874C
DK30874C DK30874DA DK30874C DK 30874 C DK30874 C DK 30874C DK 30874D A DK30874D A DK 30874DA DK 30874 C DK30874 C DK 30874C
Authority
DK
Denmark
Prior art keywords
membrane
speech
machines
speech machines
Prior art date
Application number
Other languages
Danish (da)
Inventor
Horace Hurm
Original Assignee
Horace Hurm
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 Horace Hurm filed Critical Horace Hurm
Application granted granted Critical
Publication of DK30874C publication Critical patent/DK30874C/en

Links

DK30874D 1920-04-19 1920-07-06 Membrane for Speech Machines and the like. DK30874C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE30874X 1920-04-19

Publications (1)

Publication Number Publication Date
DK30874C true DK30874C (en) 1922-12-11

Family

ID=3844186

Family Applications (1)

Application Number Title Priority Date Filing Date
DK30874D DK30874C (en) 1920-04-19 1920-07-06 Membrane for Speech Machines and the like.

Country Status (1)

Country Link
DK (1) DK30874C (en)

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