using solid propellants (F02K9/72 takes precedence; using semi-solid or pulverulent propellants F02K9/70)

Child Classifications

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• F02K 9/10 Shape or structure of solid propellant charges since 1980 IPC+CPC Available in IPC and CPC
• F02K 9/24 Charging rocket engines with solid propellants; Methods or apparatus specially adapted for working solid propellant charges since 1980 IPC+CPC Available in IPC and CPC
• F02K 9/26 Burning control since 1980 IPC+CPC Available in IPC and CPC
• F02K 9/28 having two or more propellant charges with the propulsion gases exhausting through a common nozzle since 1980 IPC+CPC Available in IPC and CPC
• F02K 9/30 with the propulsion gases exhausting through a plurality of nozzles since 1980 IPC+CPC Available in IPC and CPC
• F02K 9/32 Constructional parts; Details not otherwise provided for since 1980 IPC+CPC Available in IPC and CPC