CH16478A - Powdered carbon microphone - Google Patents

Powdered carbon microphone

Info

Publication number: CH16478A
Authority: CH; Switzerland
Prior art keywords: powdered carbon; carbon microphone; microphone; powdered; carbon
Prior art date: 1898-04-02

Application number

CH16478A

Other languages

German (de)

Inventor

Herman Skoeld August

Original Assignee

Herman Skoeld August

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.)

1898-04-02

Filing date

1898-04-02

Publication date

1898-11-30

1898-04-02 Application filed by Herman Skoeld August filed Critical Herman Skoeld August

1898-11-30 Publication of CH16478A publication Critical patent/CH16478A/en

Links

OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title 1
229910052799 carbon Inorganic materials 0.000 title 1

CH16478A 1898-04-02 1898-04-02 Powdered carbon microphone CH16478A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH16478T		1898-04-02

Publications (1)

Publication Number	Publication Date
CH16478A true CH16478A (en)	1898-11-30

Family

ID=4215346

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH16478A CH16478A (en)	1898-04-02	1898-04-02	Powdered carbon microphone

Country Status (1)

Country	Link
CH (1)	CH16478A (en)

1898
- 1898-04-02 CH CH16478A patent/CH16478A/en unknown

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