In a preferred construction of a divided seat back with {HEAD ~ a plurality} of {TAIL ~ seat back upholstery supports}, the legs to be replaced originate preferably from different reinforcing frames, i.e., an exchange occurs crosswise, so that the initial form of each reinforcing frame needs to include only a single, specially shaped leg 
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In a preferred construction of a divided seat back with { HEAD ~ a plurality } of { TAIL ~ seat back upholstery supports } , the legs to be replaced originate preferably from different reinforcing frames , i.e. , an exchange occurs crosswise , so that the initial form of each reinforcing frame needs to include only a single , specially shaped leg
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH