Sound absorbers for use in recording of sound and in singing practice, namely, sound and vibration dampeners for audio equipment; recording sound apparatus; devices for reduction of noise in systems for recording of sound, namely, audio equalizer apparatus and audio suppression apparatus, audio limiters and audio compressors; sound and audio suppression filtering apparatus; sound and audio filtering devices, namely, low-pass filters, high-pass filters, bandpass filters and all-pass filters; s...

DIETARY SUPPLEMENT

DIETARY SUPPLEMENTS

Polymers and polymeric additives for use in the manufacture of toothpaste