flying_dad
Plastic
- Joined
- Sep 29, 2017
Does anyone know the original patent number?
I searched far and wide on the web but
i was unable to find it.
the filing year would be 1953.
I think it's a manufacturing method issue rather than
the averaging error principle in itself.
thank you.
I searched far and wide on the web but
i was unable to find it.
the filing year would be 1953.
I think it's a manufacturing method issue rather than
the averaging error principle in itself.
thank you.