Membership
Tour
Register
Log in
2111647
Follow
Information
Patent Grant
2111647
References
Source
Patent Number
2,111,647
Date Filed
Not available
Date Issued
Tuesday, March 22, 1938
86 years ago
CPC
B61L3/185 - using separate conductors
US Classifications
246 - Railway switches and signals
379 - Telephonic communications
Information
Content
Industries
Organizations
People
Transactions
Events
Impact
Timeline
Text data is not available. Click on
here
to see the original data.