a mixing bowl comprising {HEAD ~ a vessel}, {TAIL ~ a cover} for said vessel, a conical part in said cover, means for removably locking said cover on the vessel, 
a mixing bowl comprising { HEAD ~ a vessel } , { TAIL ~ a cover } for said vessel , a conical part in said cover , means for removably locking said cover on the vessel ,
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH