manfred albert
Well-Known Member
- Joined
- Sep 17, 2009
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Hello,
to round up the B & B story you will find a US Patent under 270.036 from anno 1883.
The pic are screenshots of the drawings.
Manfred
to round up the B & B story you will find a US Patent under 270.036 from anno 1883.
The pic are screenshots of the drawings.
Manfred
