_Which one of the following is an exact straight line mechanism using

1.	_Which one of the following is an exact straight line mechanism using lower pairs?$?
A.	Watt‚Äö√Ñ√¥s mechanism
B.	Grasshopper mechanism
C.	Robert‚Äö√Ñ√¥s mechanism
D.	Peaucellier‚Äö√Ñ√¥s mechanism
Answer» E.

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_Which one of the following is an exact straight line mechanism using lower pairs?$?

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