DK28670C - Exchange device. - Google Patents

Exchange device.

Info

Publication number
DK28670C
DK28670C DK28670DA DK28670C DK 28670 C DK28670 C DK 28670C DK 28670D A DK28670D A DK 28670DA DK 28670 C DK28670 C DK 28670C
Authority
DK
Denmark
Prior art keywords
exchange device
exchange
Prior art date
Application number
Other languages
Danish (da)
Inventor
Alexander Fraser Mackay
Original Assignee
Alexander Fraser Mackay
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 Alexander Fraser Mackay filed Critical Alexander Fraser Mackay
Application granted granted Critical
Publication of DK28670C publication Critical patent/DK28670C/en

Links

DK28670D 1919-06-20 1920-06-03 Exchange device. DK28670C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28670X 1919-06-20

Publications (1)

Publication Number Publication Date
DK28670C true DK28670C (en) 1921-10-24

Family

ID=9747462

Family Applications (1)

Application Number Title Priority Date Filing Date
DK28670D DK28670C (en) 1919-06-20 1920-06-03 Exchange device.

Country Status (1)

Country Link
DK (1) DK28670C (en)

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