A new and improved combustion powered fastener driving tool utilizes a new and improved single component in {HEAD ~ take/exhaust valve member} which integrally defines {TAIL ~ both the intake and exhaust valves} thereon 
integrally defines
A new and improved combustion powered fastener driving tool utilizes a new and improved single component in { HEAD ~ take / exhaust valve member } which integrally defines { TAIL ~ both the intake and exhaust valves } thereon
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH