[1] Cross Reference File

[2] Connection Related Functions

[3] Capital Recovery Factor (->"IEEE Standard Dictionary")

[4] Compressor Research Facility (->"IEEE Standard Dictionary")

[5] Contrast Rendition Factor (->"IEEE Standard Dictionary")

[6] Correspondence Routing Form (->"IEEE Standard Dictionary")

[7] (military) Cryptographic Repair Facility (->"IEEE Standard Dictionary")

[8] Cable Retransmission Facility.