Abstract: Methods and systems for identifying frequency band interference based on a mobile device activity record. The mobile device activity record may include a plurality of frequencies used by the mobile device and for each frequency in the plurality of frequencies a geographic location where the frequency was used. The mobile device activity record is received and compared to a spectrum license record that lists an assigned frequency band for an assigned geographic location. The assigned frequency band and assigned geographic location may be licensed to a frequency carrier. It is determined that that a frequency band interference has occurred based on identifying a frequency in the mobile device activity record when, according to the spectrum license record, the frequency is not licensed to a frequency carrier for the mobile device, in the geographic location where the frequency was used.

Abstract: A cryogenic spray dispensing assembly having a longitudinally movable fluid conduit, thrust member means and compression exerting means positioned against the fluid conduit for upward urging of the thrust member against the product container ceiling.