Birkin; Michael Sambrook
Patent Applications and Registrations
Patent applications and USPTO patent grants for Birkin; Michael Sambrook.The latest application filed is for "track to train communication systems".
- Birkin; Michael Sambrook - London EN
- Birkin; Michael Sambrook - Derby EN
| Patent | Date |
|---|---|
| Track To Train Communication Systems Grant 3,867,573 - Birkin February 18, 1 | 1975-02-18 |
| Communication Systems For Receiving And Checking Repeatedly Transmitted Multi-digital Telegrams Grant 3,737,577 - Birkin June 5, 1 | 1973-06-05 |
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