CH248E - Kohlenkörner-Mikrophon
- Google Patents
Kohlenkörner-Mikrophon
Info
Publication number
CH248E
CH248E
CH248DD
CH248E
CH 248 E
CH248 E
CH 248E
CH 248D D
CH248D D
CH 248DD
CH 248 E
CH248 E
CH 248E
Authority
CH
Switzerland
Prior art keywords
coal grain
microphone
grain microphone
coal
grain
Prior art date
1897-05-22
Application number
Other languages
German (de )
English (en )
Inventor
G Hasler
Original Assignee
G Hasler
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.)
1897-05-22 Filing date
1898-03-04 Publication date
1898-08-31
1898-03-04
Application filed by G Hasler
filed
Critical
G Hasler
1898-08-31
Publication of CH248E
publication
Critical
patent/CH248E/da
Links
239000003245
coal
Substances
0.000
title
1
CH248D
1897-05-22
1898-03-04
Kohlenkörner-Mikrophon
CH248E
(de )
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
CH14384T
1897-05-22
CH248T
1898-03-04
Publications (1)
Publication Number
Publication Date
CH248E
true
CH248E
(de )
1898-08-31
Family
ID=41350697
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
CH248D
CH248E
(de )
1897-05-22
1898-03-04
Kohlenkörner-Mikrophon
Country Status (1)