{HEAD ~ One pair} of {TAIL ~ these sections} has a coupling 32, with the remaining portions having cooperating ends 34 for removably engaging the fittings 32 for linearly assembling each forward and rearward portion 24, 28 and 26, 30 to form the longitudinal frame members 12 and 14 
of
{ HEAD ~ One pair } of { TAIL ~ these sections } has a coupling 32 , with the remaining portions having cooperating ends 34 for removably engaging the fittings 32 for linearly assembling each forward and rearward portion 24 , 28 and 26 , 30 to form the longitudinal frame members 12 and 14
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